89 van 351W/5.8. Heads? |
Post Reply |
Author | |
russosborne
Senior Member Joined: 01-January-2015 Location: Glendale AZ Status: Offline Points: 664 |
Post Options
Thanks(0)
Posted: 22-November-2018 at 6:24PM |
I'm converting it to carb.
I don't think these on the engine are rollers,, but I don't know much about this engine. Not necessarily going to change the heads right now, but I am seeing a lot of different stock 302/351 heads for sale cheap and it has me wondering what the best choice would be, if any. Other than a 4bbl and headers I probably won't be changing anything else for now. Thanks, Russ |
|
MrSmog
Senior Member Joined: 21-January-2016 Location: Ky Status: Offline Points: 1407 |
Post Options
Thanks(0)
|
yea that should be a flat tappet engine, best factory heads i can think of are the 93-96 gt40's and the 96-2000 gt40p heads. the p heads can be a bit trickier to get headers for them due to the spark plug placement, so if it were me, then reg gt40's would get the nod.
|
|
Big Bird
Senior Member Joined: 25-August-2013 Location: New York Status: Offline Points: 4194 |
Post Options
Thanks(0)
|
They are likely E7 heads. (assuming they are original to the 89 van)
Those are the same as what a GT would have used. Engine will not be roller-cam, but those heads can support significantly more lift than the cam is currently providing. If you are working on a budget, (Who isn't) they aren't a bad place to start. Any 302/5,0 head will have smaller head bolt holes. They can be enlarged... But short of GT0, GT40P heads, the ones you have are as good as you will find in a stock head.
|
|
"What we do in full frontal view, is more honest than your cleaned-up mind."
Randy 1979 T-Bird 2005 F-150 STX RCSB 4.6, 3.55 LSD How the Heck does a REGULAR CAB SHORTBED weigh over 5200 pounds? |
|
russosborne
Senior Member Joined: 01-January-2015 Location: Glendale AZ Status: Offline Points: 664 |
Post Options
Thanks(0)
|
Thanks.
I was thinking maybe an older set would be good, but I will stick with these until I can afford aluminum. Mainly because of weight. This is going in my 79 Pinto. Russ |
|
Big Bird
Senior Member Joined: 25-August-2013 Location: New York Status: Offline Points: 4194 |
Post Options
Thanks(0)
|
1969 heads are one of those "Holy Grail" parts, cast from pure Unobtanium, ported and polished by Elves in the Factory, transported to the assembly line by Leprechauns riding Unicorns, blah-blah-blah…
Too much effort/expense chasing a head with only a small performance gain. Work with the E7s you have or spend the money on quality aftermarket aluminum heads.
|
|
"What we do in full frontal view, is more honest than your cleaned-up mind."
Randy 1979 T-Bird 2005 F-150 STX RCSB 4.6, 3.55 LSD How the Heck does a REGULAR CAB SHORTBED weigh over 5200 pounds? |
|
californiajohnny
Moderator Group Joined: 05-October-2013 Location: winlock, wa Status: Offline Points: 14609 |
Post Options
Thanks(0)
|
^^^ bird's right.
just cast aluminum will out flow the best prepped cast iron, due to the porosity and molecular structure of the metals |
|
JOHN
74 GRAN TORINO S&H CLONE 74 VETTE CUSTOM 90 S10 BLAZER 4X4 LIFTED 77 CELICA CUSTOM 75 V8 MONZA SUPERCHARGED 79 COURIER VERT. SLAMMED 75 VEGA V6 5 SPD 70 CHEV C10 P/U 68 MUSTANG FB CONVERSION |
|
russosborne
Senior Member Joined: 01-January-2015 Location: Glendale AZ Status: Offline Points: 664 |
Post Options
Thanks(0)
|
Thanks. I was just wondering if this might be some magic bullet, but since it isn't I am going to stick with what i have for now. Unless I find some aluminum ones really cheap. Definitely not a priority right now. But seeing several pairs for under $400 with different CC's, different years, etc, just got me thinking. Which tends to be a bad thing. Russ
Edited by russosborne - 24-November-2018 at 7:44PM |
|
Post Reply | |
Tweet |
Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |